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June Weather in Hartford, United States

Last updated: June 24, 2025

In Hartford, United States, the average temperature in June hovers around 21°C (70°F). However, temperatures can vary significantly, with a minimum of 7°C (45°F) and a maximum reaching up to 35°C (95°F). Expect about 111 mm (4.4 in) of precipitation spread over 12 days, while the air maintains an average humidity of 80%.

June Temperature in Hartford

In June in Hartford, the average temperature is 21°C (70°F), with maximums reaching 35°C (95°F) and minimums dropping as low as 7°C (45°F). This diverse temperature range makes it important for travelers to pack accordingly to enjoy their stay comfortably.

June Weather in Hartford: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Hartford, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hartford, June typically has an average temperature of 21°C (70°F), with highs reaching up to 35°C (95°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec212336455970747165513629
Data source: Temperature data for Hartford generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

June Precipitation in Hartford

In Hartford, in June, the precipitation amount is 111 mm (4.4 in) over a span of 12 days.

June Precipitation Trends in Hartford

The chart displays monthly precipitation patterns in Hartford, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Hartford, June typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec53495910612211110591941154545
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Hartford

In Hartford in June humidity is 80%. With an average temperature of 21°C (70°F), this humidity feels like a warm, enveloping blanket that can make even short walks feel draining, urging travelers to seek shade or a cool drink frequently.

June Average Humidity in Hartford

This chart illustrates the average monthly humidity levels in Hartford, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Hartford is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%85%85%85%78%80%78%76%79%83%88%82%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Hartford

In Hartford in June, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Hartford.

Maximum UV Index Levels in Hartford for June

The chart shows the monthly maximum UV Index (UVI) for Hartford in June, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In June, the maximum UV index in Hartford typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101097532
Data source: Hartford June UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How June Weather in Hartford Compares to Other Months

Weather in Hartford varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Hartford, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Hartford, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)53 mm (2.1 inches)85%moderate
February Weather-5°C (23°F)49 mm (1.9 inches)85%moderate
March Weather2°C (36°F)59 mm (2.3 inches)85%moderate
April Weather7°C (46°F)106 mm (4.2 inches)85%very high
May Weather15°C (59°F)122 mm (4.8 inches)78%very high
June Weather21°C (70°F)111 mm (4.4 inches)80%very high
July Weather23°C (74°F)105 mm (4.1 inches)78%very high
August Weather22°C (71°F)91 mm (3.6 inches)76%very high
September Weather18°C (65°F)94 mm (3.7 inches)79%high
October Weather11°C (52°F)115 mm (4.5 inches)83%moderate
November Weather2°C (37°F)44 mm (1.8 inches)88%moderate
December Weather-1°C (30°F)45 mm (1.8 inches)81%low

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